./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/reorder_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:19,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:19,159 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:12:19,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:19,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:19,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:19,190 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:19,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:19,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:19,192 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:19,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:19,192 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:19,193 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:19,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:19,194 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:19,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:19,195 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:19,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:19,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:19,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:19,197 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:12:19,197 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:12:19,198 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:12:19,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:19,198 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:12:19,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:19,199 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:19,199 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:19,200 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:19,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:19,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:19,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:12:19,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:19,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:19,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:19,210 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:19,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:19,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:12:19,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:19,212 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:19,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:19,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:19,213 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 [2024-10-31 22:12:19,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:19,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:19,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:19,504 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:19,505 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:19,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/reorder_2-2.i Unable to find full path for "g++" [2024-10-31 22:12:21,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:21,775 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:21,776 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/sv-benchmarks/c/pthread/reorder_2-2.i [2024-10-31 22:12:21,795 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/data/0663cb38b/9952f4924f2343bda1a1c165fa1f254b/FLAGe1027d4b4 [2024-10-31 22:12:22,005 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/data/0663cb38b/9952f4924f2343bda1a1c165fa1f254b [2024-10-31 22:12:22,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:22,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:22,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:22,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:22,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:22,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:22" (1/1) ... [2024-10-31 22:12:22,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d0483ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:22, skipping insertion in model container [2024-10-31 22:12:22,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:22" (1/1) ... [2024-10-31 22:12:22,099 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:22,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:22,968 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:23,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:23,136 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:23,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23 WrapperNode [2024-10-31 22:12:23,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:23,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:23,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:23,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:23,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,192 INFO L138 Inliner]: procedures = 372, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 137 [2024-10-31 22:12:23,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:23,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:23,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:23,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:23,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,226 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-10-31 22:12:23,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:23,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:23,246 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:23,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:23,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (1/1) ... [2024-10-31 22:12:23,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:23,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:23,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:23,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:12:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:12:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:12:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:12:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:12:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:12:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:12:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-31 22:12:23,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-31 22:12:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:12:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:12:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:12:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-31 22:12:23,329 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-31 22:12:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:12:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:12:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:12:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:23,333 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:12:23,523 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:23,525 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:23,865 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:12:23,865 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:24,009 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:24,009 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:12:24,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:24 BoogieIcfgContainer [2024-10-31 22:12:24,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:24,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:24,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:24,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:24,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:22" (1/3) ... [2024-10-31 22:12:24,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2716bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:24, skipping insertion in model container [2024-10-31 22:12:24,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:23" (2/3) ... [2024-10-31 22:12:24,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2716bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:24, skipping insertion in model container [2024-10-31 22:12:24,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:24" (3/3) ... [2024-10-31 22:12:24,019 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2-2.i [2024-10-31 22:12:24,038 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:24,039 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-31 22:12:24,039 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:12:24,087 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:12:24,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 59 transitions, 138 flow [2024-10-31 22:12:24,182 INFO L124 PetriNetUnfolderBase]: 14/137 cut-off events. [2024-10-31 22:12:24,182 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:12:24,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 137 events. 14/137 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 665 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2024-10-31 22:12:24,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 59 transitions, 138 flow [2024-10-31 22:12:24,191 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 59 transitions, 138 flow [2024-10-31 22:12:24,201 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:24,208 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c243fa9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:24,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-31 22:12:24,212 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:24,213 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2024-10-31 22:12:24,213 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:24,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:24,214 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:12:24,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-10-31 22:12:24,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:24,220 INFO L85 PathProgramCache]: Analyzing trace with hash 11529978, now seen corresponding path program 1 times [2024-10-31 22:12:24,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:24,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438409058] [2024-10-31 22:12:24,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:24,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:24,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:24,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438409058] [2024-10-31 22:12:24,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438409058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:24,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:24,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:12:24,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17529312] [2024-10-31 22:12:24,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:24,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:12:24,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:24,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:12:24,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:12:24,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 59 [2024-10-31 22:12:24,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 138 flow. Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:24,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:24,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 59 [2024-10-31 22:12:24,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:24,687 INFO L124 PetriNetUnfolderBase]: 86/377 cut-off events. [2024-10-31 22:12:24,690 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-10-31 22:12:24,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 377 events. 86/377 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2576 event pairs, 71 based on Foata normal form. 44/295 useless extension candidates. Maximal degree in co-relation 375. Up to 190 conditions per place. [2024-10-31 22:12:24,696 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 24 selfloop transitions, 0 changer transitions 0/53 dead transitions. [2024-10-31 22:12:24,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 174 flow [2024-10-31 22:12:24,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:12:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:12:24,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 87 transitions. [2024-10-31 22:12:24,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7372881355932204 [2024-10-31 22:12:24,713 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 138 flow. Second operand 2 states and 87 transitions. [2024-10-31 22:12:24,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 174 flow [2024-10-31 22:12:24,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:24,722 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 126 flow [2024-10-31 22:12:24,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2024-10-31 22:12:24,730 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-10-31 22:12:24,730 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 126 flow [2024-10-31 22:12:24,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:24,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:24,731 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:12:24,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:12:24,732 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-10-31 22:12:24,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:24,735 INFO L85 PathProgramCache]: Analyzing trace with hash 357424794, now seen corresponding path program 1 times [2024-10-31 22:12:24,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:24,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056370006] [2024-10-31 22:12:24,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:24,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:25,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:25,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:25,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056370006] [2024-10-31 22:12:25,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056370006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:25,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:25,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:25,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500830258] [2024-10-31 22:12:25,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:25,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:25,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:25,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:25,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:25,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 59 [2024-10-31 22:12:25,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:25,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:25,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 59 [2024-10-31 22:12:25,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:25,201 INFO L124 PetriNetUnfolderBase]: 97/370 cut-off events. [2024-10-31 22:12:25,201 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-10-31 22:12:25,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 370 events. 97/370 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2478 event pairs, 65 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 607. Up to 168 conditions per place. [2024-10-31 22:12:25,207 INFO L140 encePairwiseOnDemand]: 55/59 looper letters, 27 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-10-31 22:12:25,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 54 transitions, 186 flow [2024-10-31 22:12:25,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:25,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-10-31 22:12:25,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5988700564971752 [2024-10-31 22:12:25,211 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 126 flow. Second operand 3 states and 106 transitions. [2024-10-31 22:12:25,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 54 transitions, 186 flow [2024-10-31 22:12:25,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:25,216 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 126 flow [2024-10-31 22:12:25,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2024-10-31 22:12:25,218 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-10-31 22:12:25,218 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 126 flow [2024-10-31 22:12:25,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:25,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:25,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:12:25,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:12:25,221 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-10-31 22:12:25,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash 357424795, now seen corresponding path program 1 times [2024-10-31 22:12:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:25,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544233035] [2024-10-31 22:12:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:25,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:25,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:25,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544233035] [2024-10-31 22:12:25,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544233035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:25,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:25,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:12:25,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563867178] [2024-10-31 22:12:25,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:25,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:25,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:25,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:25,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:12:25,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2024-10-31 22:12:25,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:25,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:25,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2024-10-31 22:12:25,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:25,926 INFO L124 PetriNetUnfolderBase]: 184/699 cut-off events. [2024-10-31 22:12:25,926 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-10-31 22:12:25,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 699 events. 184/699 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5583 event pairs, 124 based on Foata normal form. 1/525 useless extension candidates. Maximal degree in co-relation 1174. Up to 215 conditions per place. [2024-10-31 22:12:25,931 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 47 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2024-10-31 22:12:25,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 300 flow [2024-10-31 22:12:25,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:25,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:12:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2024-10-31 22:12:25,934 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6822033898305084 [2024-10-31 22:12:25,934 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 126 flow. Second operand 4 states and 161 transitions. [2024-10-31 22:12:25,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 300 flow [2024-10-31 22:12:25,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:25,938 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 148 flow [2024-10-31 22:12:25,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-10-31 22:12:25,939 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2024-10-31 22:12:25,939 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 148 flow [2024-10-31 22:12:25,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:25,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:25,940 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:25,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:12:25,941 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-10-31 22:12:25,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:25,942 INFO L85 PathProgramCache]: Analyzing trace with hash 963781637, now seen corresponding path program 1 times [2024-10-31 22:12:25,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:25,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307589128] [2024-10-31 22:12:25,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:25,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:25,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:25,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:25,996 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:12:25,997 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2024-10-31 22:12:26,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2024-10-31 22:12:26,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2024-10-31 22:12:26,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2024-10-31 22:12:26,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-10-31 22:12:26,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-10-31 22:12:26,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-10-31 22:12:26,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-10-31 22:12:26,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2024-10-31 22:12:26,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-10-31 22:12:26,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-10-31 22:12:26,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2024-10-31 22:12:26,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2024-10-31 22:12:26,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2024-10-31 22:12:26,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2024-10-31 22:12:26,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:12:26,008 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:12:26,037 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:12:26,038 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:12:26,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:12:26 BasicIcfg [2024-10-31 22:12:26,044 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:12:26,045 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:12:26,045 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:12:26,049 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:12:26,049 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:24" (3/4) ... [2024-10-31 22:12:26,052 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:12:26,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:12:26,058 INFO L158 Benchmark]: Toolchain (without parser) took 4048.11ms. Allocated memory was 174.1MB in the beginning and 213.9MB in the end (delta: 39.8MB). Free memory was 136.1MB in the beginning and 95.7MB in the end (delta: 40.4MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB. [2024-10-31 22:12:26,058 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 174.1MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:26,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1125.87ms. Allocated memory is still 174.1MB. Free memory was 135.7MB in the beginning and 93.7MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-31 22:12:26,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.15ms. Allocated memory is still 174.1MB. Free memory was 93.3MB in the beginning and 90.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:26,060 INFO L158 Benchmark]: Boogie Preprocessor took 52.18ms. Allocated memory is still 174.1MB. Free memory was 90.8MB in the beginning and 88.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:26,061 INFO L158 Benchmark]: RCFGBuilder took 763.78ms. Allocated memory was 174.1MB in the beginning and 213.9MB in the end (delta: 39.8MB). Free memory was 87.9MB in the beginning and 165.5MB in the end (delta: -77.6MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2024-10-31 22:12:26,061 INFO L158 Benchmark]: TraceAbstraction took 2032.01ms. Allocated memory is still 213.9MB. Free memory was 165.5MB in the beginning and 95.7MB in the end (delta: 69.8MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2024-10-31 22:12:26,065 INFO L158 Benchmark]: Witness Printer took 11.68ms. Allocated memory is still 213.9MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:26,067 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 174.1MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1125.87ms. Allocated memory is still 174.1MB. Free memory was 135.7MB in the beginning and 93.7MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.15ms. Allocated memory is still 174.1MB. Free memory was 93.3MB in the beginning and 90.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.18ms. Allocated memory is still 174.1MB. Free memory was 90.8MB in the beginning and 88.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 763.78ms. Allocated memory was 174.1MB in the beginning and 213.9MB in the end (delta: 39.8MB). Free memory was 87.9MB in the beginning and 165.5MB in the end (delta: -77.6MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2032.01ms. Allocated memory is still 213.9MB. Free memory was 165.5MB in the beginning and 95.7MB in the end (delta: 69.8MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. * Witness Printer took 11.68ms. Allocated memory is still 213.9MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1254. Possible FailurePath: [L1238] static int iSet = 2; [L1239] static int iCheck = 2; [L1240] static int a = 0; [L1241] static int b = 0; [L1247] int i, err; VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1248] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1249] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1253] argv[1] [L1254] argv[2] [L1257] pthread_t setPool[iSet]; [L1258] pthread_t checkPool[iCheck]; [L1259] i = 0 VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=0, iSet=1073741824, setPool={4:0}] [L1259] COND TRUE i < iSet - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1260]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1266]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 67 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 287 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 4 mSDtfsCounter, 287 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-31 22:12:26,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:29,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:29,140 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-31 22:12:29,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:29,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:29,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:29,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:29,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:29,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:29,193 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:29,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:29,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:29,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:29,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:29,195 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:29,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:29,199 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:29,201 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:29,202 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:29,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:29,202 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:12:29,203 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:12:29,205 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:12:29,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:29,205 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:12:29,206 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:12:29,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:29,206 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:12:29,207 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:29,207 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:29,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:29,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:29,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:29,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:12:29,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:29,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:29,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:29,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:29,211 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:12:29,211 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:12:29,212 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:29,212 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:29,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:29,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:29,213 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:12:29,213 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0 [2024-10-31 22:12:29,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:29,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:29,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:29,799 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:29,802 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:29,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/reorder_2-2.i Unable to find full path for "g++" [2024-10-31 22:12:32,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:32,518 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:32,518 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/sv-benchmarks/c/pthread/reorder_2-2.i [2024-10-31 22:12:32,545 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/data/89fca9351/40e9c321243445c4b2173877d29e6fb6/FLAG2ed960c02 [2024-10-31 22:12:32,562 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/data/89fca9351/40e9c321243445c4b2173877d29e6fb6 [2024-10-31 22:12:32,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:32,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:32,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:32,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:32,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:32,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:32" (1/1) ... [2024-10-31 22:12:32,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465e8020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:32, skipping insertion in model container [2024-10-31 22:12:32,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:32" (1/1) ... [2024-10-31 22:12:32,644 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:33,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:33,400 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:33,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:33,647 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:33,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33 WrapperNode [2024-10-31 22:12:33,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:33,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:33,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:33,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:33,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,732 INFO L138 Inliner]: procedures = 375, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2024-10-31 22:12:33,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:33,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:33,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:33,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:33,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,785 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-10-31 22:12:33,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:33,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:33,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:33,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:33,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:33,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:33,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:33,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-31 22:12:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-31 22:12:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-31 22:12:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:12:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:12:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:12:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-31 22:12:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-31 22:12:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-31 22:12:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:12:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-31 22:12:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-31 22:12:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:12:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-31 22:12:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-31 22:12:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-31 22:12:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-31 22:12:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:33,912 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:12:34,176 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:34,179 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:34,608 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:12:34,612 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:34,827 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:34,828 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:12:34,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:34 BoogieIcfgContainer [2024-10-31 22:12:34,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:34,831 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:34,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:34,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:34,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:32" (1/3) ... [2024-10-31 22:12:34,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abc2b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:34, skipping insertion in model container [2024-10-31 22:12:34,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (2/3) ... [2024-10-31 22:12:34,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abc2b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:34, skipping insertion in model container [2024-10-31 22:12:34,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:34" (3/3) ... [2024-10-31 22:12:34,848 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2-2.i [2024-10-31 22:12:34,867 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:34,867 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-31 22:12:34,867 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:12:34,924 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:12:34,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 59 transitions, 138 flow [2024-10-31 22:12:35,024 INFO L124 PetriNetUnfolderBase]: 14/137 cut-off events. [2024-10-31 22:12:35,024 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:12:35,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 137 events. 14/137 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 665 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2024-10-31 22:12:35,028 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 59 transitions, 138 flow [2024-10-31 22:12:35,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 59 transitions, 138 flow [2024-10-31 22:12:35,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:35,048 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3cf414c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:35,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-31 22:12:35,052 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:35,052 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2024-10-31 22:12:35,053 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:35,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:35,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:12:35,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-10-31 22:12:35,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:35,060 INFO L85 PathProgramCache]: Analyzing trace with hash 11468410, now seen corresponding path program 1 times [2024-10-31 22:12:35,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:12:35,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236526522] [2024-10-31 22:12:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:35,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:12:35,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:12:35,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:12:35,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-31 22:12:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:35,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-31 22:12:35,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:35,206 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:35,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:12:35,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236526522] [2024-10-31 22:12:35,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236526522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:35,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:35,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:12:35,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034787703] [2024-10-31 22:12:35,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:35,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:12:35,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:12:35,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:12:35,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:12:35,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 59 [2024-10-31 22:12:35,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 138 flow. Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:35,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:35,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 59 [2024-10-31 22:12:35,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:35,479 INFO L124 PetriNetUnfolderBase]: 86/377 cut-off events. [2024-10-31 22:12:35,479 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-10-31 22:12:35,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 377 events. 86/377 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2576 event pairs, 71 based on Foata normal form. 44/295 useless extension candidates. Maximal degree in co-relation 375. Up to 190 conditions per place. [2024-10-31 22:12:35,484 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 24 selfloop transitions, 0 changer transitions 0/53 dead transitions. [2024-10-31 22:12:35,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 174 flow [2024-10-31 22:12:35,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:12:35,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:12:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 87 transitions. [2024-10-31 22:12:35,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7372881355932204 [2024-10-31 22:12:35,500 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 138 flow. Second operand 2 states and 87 transitions. [2024-10-31 22:12:35,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 174 flow [2024-10-31 22:12:35,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:35,508 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 126 flow [2024-10-31 22:12:35,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2024-10-31 22:12:35,514 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-10-31 22:12:35,515 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 126 flow [2024-10-31 22:12:35,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:35,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:35,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:12:35,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:35,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:12:35,717 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-10-31 22:12:35,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:35,717 INFO L85 PathProgramCache]: Analyzing trace with hash 355516184, now seen corresponding path program 1 times [2024-10-31 22:12:35,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:12:35,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537074917] [2024-10-31 22:12:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:35,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:12:35,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:12:35,722 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:12:35,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-31 22:12:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:35,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:12:35,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:35,913 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2024-10-31 22:12:35,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2024-10-31 22:12:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:35,947 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:35,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:12:35,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537074917] [2024-10-31 22:12:35,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537074917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:35,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:35,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:35,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491824182] [2024-10-31 22:12:35,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:35,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:35,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:12:35,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:35,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:36,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 59 [2024-10-31 22:12:36,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:36,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:36,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 59 [2024-10-31 22:12:36,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:36,199 INFO L124 PetriNetUnfolderBase]: 97/370 cut-off events. [2024-10-31 22:12:36,199 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-10-31 22:12:36,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 370 events. 97/370 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2478 event pairs, 65 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 607. Up to 168 conditions per place. [2024-10-31 22:12:36,203 INFO L140 encePairwiseOnDemand]: 55/59 looper letters, 27 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-10-31 22:12:36,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 54 transitions, 186 flow [2024-10-31 22:12:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:36,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:36,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-10-31 22:12:36,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5988700564971752 [2024-10-31 22:12:36,207 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 126 flow. Second operand 3 states and 106 transitions. [2024-10-31 22:12:36,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 54 transitions, 186 flow [2024-10-31 22:12:36,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:36,210 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 126 flow [2024-10-31 22:12:36,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2024-10-31 22:12:36,212 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-10-31 22:12:36,212 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 126 flow [2024-10-31 22:12:36,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:36,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:36,213 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:12:36,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:36,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:12:36,414 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-10-31 22:12:36,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:36,417 INFO L85 PathProgramCache]: Analyzing trace with hash 355516185, now seen corresponding path program 1 times [2024-10-31 22:12:36,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:12:36,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727944228] [2024-10-31 22:12:36,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:36,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:12:36,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:12:36,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:12:36,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-31 22:12:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:36,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:12:36,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:36,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:12:36,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-10-31 22:12:36,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-10-31 22:12:36,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:36,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:36,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:12:36,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727944228] [2024-10-31 22:12:36,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727944228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:36,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:36,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:36,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470603837] [2024-10-31 22:12:36,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:36,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:36,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:12:36,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:36,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:36,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2024-10-31 22:12:36,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:36,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:36,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2024-10-31 22:12:36,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:37,069 INFO L124 PetriNetUnfolderBase]: 184/699 cut-off events. [2024-10-31 22:12:37,069 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-10-31 22:12:37,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 699 events. 184/699 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5560 event pairs, 159 based on Foata normal form. 1/525 useless extension candidates. Maximal degree in co-relation 1174. Up to 215 conditions per place. [2024-10-31 22:12:37,075 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 47 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2024-10-31 22:12:37,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 300 flow [2024-10-31 22:12:37,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:12:37,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2024-10-31 22:12:37,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6822033898305084 [2024-10-31 22:12:37,081 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 126 flow. Second operand 4 states and 161 transitions. [2024-10-31 22:12:37,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 300 flow [2024-10-31 22:12:37,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:37,087 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 148 flow [2024-10-31 22:12:37,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-10-31 22:12:37,089 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2024-10-31 22:12:37,089 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 148 flow [2024-10-31 22:12:37,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:37,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:37,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:37,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-31 22:12:37,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:12:37,291 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-10-31 22:12:37,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:37,292 INFO L85 PathProgramCache]: Analyzing trace with hash -61046011, now seen corresponding path program 1 times [2024-10-31 22:12:37,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:12:37,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290890824] [2024-10-31 22:12:37,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:37,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:12:37,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:12:37,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:12:37,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-31 22:12:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:37,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:37,440 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-31 22:12:37,440 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:12:37,442 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2024-10-31 22:12:37,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2024-10-31 22:12:37,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2024-10-31 22:12:37,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2024-10-31 22:12:37,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-10-31 22:12:37,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-10-31 22:12:37,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-10-31 22:12:37,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-10-31 22:12:37,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2024-10-31 22:12:37,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-10-31 22:12:37,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-10-31 22:12:37,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2024-10-31 22:12:37,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2024-10-31 22:12:37,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2024-10-31 22:12:37,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2024-10-31 22:12:37,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-31 22:12:37,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:12:37,650 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:12:37,675 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:12:37,675 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:12:37,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:12:37 BasicIcfg [2024-10-31 22:12:37,681 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:12:37,681 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:12:37,681 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:12:37,682 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:12:37,682 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:34" (3/4) ... [2024-10-31 22:12:37,684 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:12:37,686 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:12:37,687 INFO L158 Benchmark]: Toolchain (without parser) took 5120.68ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 75.9MB in the beginning and 77.1MB in the end (delta: -1.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:37,687 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 73.4MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:37,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1080.69ms. Allocated memory is still 102.8MB. Free memory was 75.6MB in the beginning and 57.9MB in the end (delta: 17.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-10-31 22:12:37,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.22ms. Allocated memory is still 102.8MB. Free memory was 57.9MB in the beginning and 55.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:12:37,693 INFO L158 Benchmark]: Boogie Preprocessor took 86.30ms. Allocated memory is still 102.8MB. Free memory was 55.0MB in the beginning and 52.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:37,693 INFO L158 Benchmark]: RCFGBuilder took 1004.97ms. Allocated memory is still 102.8MB. Free memory was 51.6MB in the beginning and 45.2MB in the end (delta: 6.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-10-31 22:12:37,694 INFO L158 Benchmark]: TraceAbstraction took 2849.50ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 44.8MB in the beginning and 78.2MB in the end (delta: -33.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:37,696 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 123.7MB. Free memory was 78.2MB in the beginning and 77.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:37,703 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 73.4MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1080.69ms. Allocated memory is still 102.8MB. Free memory was 75.6MB in the beginning and 57.9MB in the end (delta: 17.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.22ms. Allocated memory is still 102.8MB. Free memory was 57.9MB in the beginning and 55.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.30ms. Allocated memory is still 102.8MB. Free memory was 55.0MB in the beginning and 52.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1004.97ms. Allocated memory is still 102.8MB. Free memory was 51.6MB in the beginning and 45.2MB in the end (delta: 6.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2849.50ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 44.8MB in the beginning and 78.2MB in the end (delta: -33.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 123.7MB. Free memory was 78.2MB in the beginning and 77.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1254. Possible FailurePath: [L1238] static int iSet = 2; [L1239] static int iCheck = 2; [L1240] static int a = 0; [L1241] static int b = 0; [L1247] int i, err; VAL [\old(argc)=3, \old(argv)={7:6}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1248] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={7:6}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1249] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={7:6}, a=0, argc=3, b=0, iCheck=2, iSet=2] [L1253] argv[1] [L1254] argv[2] [L1257] pthread_t setPool[iSet]; [L1258] pthread_t checkPool[iCheck]; [L1259] i = 0 VAL [\old(argc)=3, \old(argv)={7:6}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=0, iSet=1073741824, setPool={3:0}] [L1259] COND TRUE i < iSet - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1260]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1266]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 67 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 196 IncrementalHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 22 mSDtfsCounter, 196 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 3 NumberOfNonLiveVariables, 103 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-31 22:12:37,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e041c2a3-b301-4a37-9a07-3fc84aed87b7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample